反应 #481594

反应方程式

2-ethylanthraquinone

NBS

benzoyl peroxide

→

2-(1-bromoethyl)-anthraquinone

溶剂

CCl4

反应条件

后处理

1. 1
   温度at reflux for 1.5 hours
2. 2
   温度On cooling
3. 3
   过滤the precipitate is collected by filtration
4. 4
   洗涤washed on the
5. 5
   过滤filter with ethanol, hot water and finally ethanol again
6. 6
   其他After drying
7. 7
   其他this may be used without further purification (i.e. recrystallisation from benzene/methanol (1:1))

实验过程

A mixture of 2-ethylanthraquinone (25 Kg, 105.9 mol), NBS (19.1 Kg, 107.3 mol) and benzoyl peroxide (70%, 200 g, 0.58 mol) in CCl4 (˜150L) is stirred at reflux for 1.5 hours. On cooling, the precipitate is collected by filtration and washed on the filter with ethanol, hot water and finally ethanol again. After drying, this may be used without further purification (i.e. recrystallisation from benzene/methanol (1:1)).

来源